Zahiri School

By the ninth century, the major Sunni schools of law had each settled on some combination of Quran, hadith, consensus and qiyas, analogical reasoning, as their sources, extending a scriptural ruling by likeness to cases scripture never directly addressed. Dawud ibn Khalaf al-Zahiri, born around 815 and active chiefly in Baghdad, broke with that consensus on principle. He argued that qiyas amounted to substituting human guesswork for divine law, and that juristic preference and personal opinion, however learned the jurist, had no proper place in deriving legal rulings at all. What remained, in his system, was the zahir, the plain apparent sense of the Quran and authentic hadith, applied as directly and as literally as the text allowed, with consensus accepted only where it was genuinely unanimous and explicit rather than inferred.

The approach won him a following, and for a time the Zahiri school operated as a recognized fifth current alongside the four schools that survive today, though it never achieved their lasting institutional backing from any ruling dynasty. Its adherents were sometimes accused by rival jurists of a rigid, almost mechanical literalism that ignored the underlying purposes scholars believed the law was meant to serve, a charge Zahiri jurists rejected as itself an act of the unauthorized human reasoning they had set out to exclude.

The Zahiri school found its most consequential exponent two centuries after Dawud al-Zahiri's death, in Ibn Hazm of Cordoba, a court secretary turned jurist and theologian who lived through the collapse of the Umayyad caliphate of al-Andalus in the early eleventh century. Ibn Hazm adopted and extended Zahiri method across an enormous range of subjects, from law to comparative religion to love poetry, and his surviving legal compendium, al-Muhalla, remains the fullest working example of how a Zahiri jurist actually applied the school's literalist principles case by case, refusing analogy even where it would have produced an outcome he might otherwise have favored.

Neither Dawud's Baghdad nor Ibn Hazm's Cordoba produced a dynasty willing to make Zahirism a state's official law the way Sunni rulers elsewhere backed Hanafi or Maliki practice, and the school gradually faded as an organized, self-perpetuating institution with its own teaching chain, leaving no living community that identifies primarily as Zahiri today. Its texts did not disappear with its institutions, however: al-Muhalla continued to be copied and read, and in the last century a number of scholars associated with Salafi reform movements, which share the Zahiri instinct to prefer scriptural text over inherited school opinion, have returned to Ibn Hazm's arguments, citing a medieval literalist school to support a modern one.